diff --git a/poetry.lock b/poetry.lock
index e8a899a..088fc70 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1025,7 +1025,7 @@ version = "0.7.3"
 description = "Python logging made (stupidly) simple"
 optional = false
 python-versions = "<4.0,>=3.5"
-groups = ["main"]
+groups = ["main", "dev"]
 files = [
     {file = "loguru-0.7.3-py3-none-any.whl", hash = "sha256:31a33c10c8e1e10422bfd431aeb5d351c7cf7fa671e3c4df004162264b28220c"},
     {file = "loguru-0.7.3.tar.gz", hash = "sha256:19480589e77d47b8d85b2c827ad95d49bf31b0dcde16593892eb51dd18706eb6"},
@@ -1750,6 +1750,24 @@ tomli = {version = ">=1", markers = "python_version < \"3.11\""}
 [package.extras]
 dev = ["argcomplete", "attrs (>=19.2)", "hypothesis (>=3.56)", "mock", "pygments (>=2.7.2)", "requests", "setuptools", "xmlschema"]
 
+[[package]]
+name = "pytest-loguru"
+version = "0.4.0"
+description = "Pytest Loguru"
+optional = false
+python-versions = ">=3.8"
+groups = ["dev"]
+files = [
+    {file = "pytest_loguru-0.4.0-py3-none-any.whl", hash = "sha256:3cc7b9c6b22cb158209ccbabf0d678dacd3f3c7497d6f46f1c338c13bee1ac77"},
+    {file = "pytest_loguru-0.4.0.tar.gz", hash = "sha256:0d9e4e72ae9bfd92f774c666e7353766af11b0b78edd59c290e89be116050f03"},
+]
+
+[package.dependencies]
+loguru = "*"
+
+[package.extras]
+test = ["pytest", "pytest-cov"]
+
 [[package]]
 name = "python-dateutil"
 version = "2.9.0.post0"
@@ -3032,7 +3050,7 @@ version = "1.2.0"
 description = "A small Python utility to set file creation time on Windows"
 optional = false
 python-versions = ">=3.5"
-groups = ["main"]
+groups = ["main", "dev"]
 markers = "sys_platform == \"win32\""
 files = [
     {file = "win32_setctime-1.2.0-py3-none-any.whl", hash = "sha256:95d644c4e708aba81dc3704a116d8cbc974d70b3bdb8be1d150e36be6e9d1390"},
@@ -3082,4 +3100,4 @@ test = ["pytest (>=8.1,<9.0)", "pytest-rerunfailures (>=14.0,<15.0)"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10,<3.13"
-content-hash = "1556d53c5a94392c120ebaafc495d3b322daf64dac4a19f9726588c7f3d84bca"
+content-hash = "5a54c84ba388db7b77d1c28973b710fc99aa3822a2860b30acaf5b02ba1927bd"
diff --git a/pyproject.toml b/pyproject.toml
index b3a2456..3cd47e7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -63,6 +63,7 @@ dependencies = [
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.3.4"
 autopep8 = "^2.3.1"
+pytest-loguru = "^0.4.0"
 
 [tool.poetry.group.docs.dependencies]
 sphinx = "^8.1.3"
diff --git a/src/auto_archiver/__main__.py b/src/auto_archiver/__main__.py
index d31ec5c..0e2f54f 100644
--- a/src/auto_archiver/__main__.py
+++ b/src/auto_archiver/__main__.py
@@ -1,8 +1,9 @@
 """ Entry point for the auto_archiver package. """
 from auto_archiver.core.orchestrator import ArchivingOrchestrator
+import sys
 
 def main():
-    ArchivingOrchestrator().run()
+    ArchivingOrchestrator().run(sys.argv)
 
 if __name__ == "__main__":
     main()
diff --git a/src/auto_archiver/core/authentication.py b/src/auto_archiver/core/authentication.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/auto_archiver/core/config.py b/src/auto_archiver/core/config.py
index 46dbe28..ca8ed25 100644
--- a/src/auto_archiver/core/config.py
+++ b/src/auto_archiver/core/config.py
@@ -48,6 +48,10 @@ class DefaultValidatingParser(argparse.ArgumentParser):
         """
         for action in self._actions:
             if not namespace or action.dest not in namespace:
+                # for actions that are required and already have a default value, remove the 'required' check
+                if action.required and action.default is not None:
+                    action.required = False
+
                 if action.default is not None:
                     try:
                         self._check_value(action, action.default)
diff --git a/src/auto_archiver/core/extractor.py b/src/auto_archiver/core/extractor.py
index 8d509ec..51d784f 100644
--- a/src/auto_archiver/core/extractor.py
+++ b/src/auto_archiver/core/extractor.py
@@ -11,9 +11,12 @@ from abc import abstractmethod
 from dataclasses import dataclass
 import mimetypes
 import os
-import mimetypes, requests
+import mimetypes
+
+import requests
 from loguru import logger
 from retrying import retry
+import re
 
 from ..core import Metadata, ArchivingContext, BaseModule
 
@@ -25,6 +28,8 @@ class Extractor(BaseModule):
     Subclasses must implement the `download` method to define platform-specific behavior.
     """
 
+    valid_url: re.Pattern = None
+
     def cleanup(self) -> None:
         # called when extractors are done, or upon errors, cleanup any resources
         pass
@@ -32,13 +37,20 @@ class Extractor(BaseModule):
     def sanitize_url(self, url: str) -> str:
         # used to clean unnecessary URL parameters OR unfurl redirect links
         return url
+    
+    def match_link(self, url: str) -> re.Match:
+        return self.valid_url.match(url)
 
     def suitable(self, url: str) -> bool:
         """
         Returns True if this extractor can handle the given URL
 
         Should be overridden by subclasses
+
         """
+        if self.valid_url:
+            return self.match_link(url) is not None
+        
         return True
 
     def _guess_file_type(self, path: str) -> str:
diff --git a/src/auto_archiver/core/module.py b/src/auto_archiver/core/module.py
index cb380cf..4542b88 100644
--- a/src/auto_archiver/core/module.py
+++ b/src/auto_archiver/core/module.py
@@ -83,6 +83,11 @@ def setup_paths(paths: list[str]) -> None:
     
     """
     for path in paths:
+        # check path exists, if it doesn't, log a warning
+        if not os.path.exists(path):
+            logger.warning(f"Path '{path}' does not exist. Skipping...")
+            continue
+
         # see odoo/module/module.py -> initialize_sys_path
         if path not in auto_archiver.modules.__path__:
                 auto_archiver.modules.__path__.append(path)
diff --git a/src/auto_archiver/core/orchestrator.py b/src/auto_archiver/core/orchestrator.py
index b305963..ba46492 100644
--- a/src/auto_archiver/core/orchestrator.py
+++ b/src/auto_archiver/core/orchestrator.py
@@ -43,6 +43,7 @@ class ArchivingOrchestrator:
 
     def setup_basic_parser(self):
         parser = argparse.ArgumentParser(
+                prog="auto-archiver",
                 add_help=False,
                 description="""
                 Auto Archiver is a CLI tool to archive media/metadata from online URLs;
@@ -51,15 +52,16 @@ class ArchivingOrchestrator:
                 epilog="Check the code at https://github.com/bellingcat/auto-archiver",
                 formatter_class=RichHelpFormatter,
         )
-        parser.add_argument('--config', action='store', dest="config_file", help='the filename of the YAML configuration file (defaults to \'config.yaml\')', default=DEFAULT_CONFIG_FILE)
+        parser.add_argument('--help', '-h', action='store_true', dest='help', help='show this help message and exit')
         parser.add_argument('--version', action='version', version=__version__)
+        parser.add_argument('--config', action='store', dest="config_file", help='the filename of the YAML configuration file (defaults to \'config.yaml\')', default=DEFAULT_CONFIG_FILE)
         parser.add_argument('--mode', action='store', dest='mode', type=str, choices=['simple', 'full'], help='the mode to run the archiver in', default='simple')
         # override the default 'help' so we can inject all the configs and show those
-        parser.add_argument('-h', '--help', action='store_true', dest='help', help='show this help message and exit')
         parser.add_argument('-s', '--store', dest='store', default=False, help='Store the created config in the config file', action=argparse.BooleanOptionalAction)
         parser.add_argument('--module_paths', dest='module_paths', nargs='+', default=[], help='additional paths to search for modules', action=UniqueAppendAction)
 
         self.basic_parser = parser
+        return parser
 
     def setup_complete_parser(self, basic_config: dict, yaml_config: dict, unused_args: list[str]) -> None:
         parser = DefaultValidatingParser(
@@ -78,15 +80,15 @@ class ArchivingOrchestrator:
             # only load the modules enabled in config
             # TODO: if some steps are empty (e.g. 'feeders' is empty), should we default to the 'simple' ones? Or only if they are ALL empty?
             enabled_modules = []
-            for module_type in BaseModule.MODULE_TYPES:
-                enabled_modules.extend(yaml_config['steps'].get(f"{module_type}s", []))
 
-            # add in any extra modules that have been passed on the command line for 'feeders', 'enrichers', 'archivers', 'databases', 'storages', 'formatter'
-            for module_type in BaseModule.MODULE_TYPES:
-                if modules := getattr(basic_config, f"{module_type}s", []):
-                    enabled_modules.extend(modules)
+            # first loads the modules from the config file, then from the command line
+            for config in [yaml_config['steps'], basic_config.__dict__]:
+                for module_type in BaseModule.MODULE_TYPES:
+                    enabled_modules.extend(config.get(f"{module_type}s", []))
 
-            avail_modules = available_modules(with_manifest=True, limit_to_modules=list(dict.fromkeys(enabled_modules)), suppress_warnings=True)
+            # clear out duplicates, but keep the order
+            enabled_modules = list(dict.fromkeys(enabled_modules))
+            avail_modules = available_modules(with_manifest=True, limit_to_modules=enabled_modules, suppress_warnings=True)
             self.add_module_args(avail_modules, parser)
         elif basic_config.mode == 'simple':
             simple_modules = [module for module in available_modules(with_manifest=True) if not module.requires_setup]
@@ -163,6 +165,10 @@ class ArchivingOrchestrator:
                     # make a nicer metavar, metavar is what's used in the help, e.g. --cli_feeder.urls [METAVAR]
                     kwargs['metavar'] = name.upper()
 
+                if kwargs.get('required', False):
+                    # required args shouldn't have a 'default' value, remove it
+                    kwargs.pop('default', None)
+
                 kwargs.pop('cli_set', None)
                 should_store = kwargs.pop('should_store', False)
                 kwargs['dest'] = f"{module.name}.{kwargs.pop('dest', name)}"
@@ -179,13 +185,12 @@ class ArchivingOrchestrator:
         
         self.add_additional_args(self.basic_parser)
         self.add_module_args(parser=self.basic_parser)
-
         self.basic_parser.print_help()
-        exit()
+        self.basic_parser.exit()
     
     def setup_logging(self):
         # setup loguru logging
-        logger.remove() # remove the default logger
+        logger.remove(0) # remove the default logger
         logging_config = self.config['logging']
         logger.add(sys.stderr, level=logging_config['level'])
         if log_file := logging_config['file']:
@@ -194,14 +199,18 @@ class ArchivingOrchestrator:
         
     def install_modules(self):
         """
-        Swaps out the previous 'strings' in the config with the actual modules
+        Swaps out the previous 'strings' in the config with the actual modules and loads them
         """
         
         invalid_modules = []
         for module_type in BaseModule.MODULE_TYPES:
+
             step_items = []
             modules_to_load = self.config['steps'][f"{module_type}s"]
 
+            assert modules_to_load, f"No {module_type}s were configured. Make sure to set at least one {module_type} \
+                                        in your configuration file or on the command line (using --{module_type}s)"
+
             def check_steps_ok():
                 if not len(step_items):
                     logger.error(f"NO {module_type.upper()}S LOADED. Please check your configuration and try again.")
@@ -239,30 +248,29 @@ class ArchivingOrchestrator:
 
             assert len(step_items) > 0, f"No {module_type}s were loaded. Please check your configuration file and try again."
             self.config['steps'][f"{module_type}s"] = step_items
+    
+    def load_config(self, config_file: str) -> dict:
+        if not os.path.exists(config_file) and config_file != DEFAULT_CONFIG_FILE:
+            logger.error(f"The configuration file {config_file} was  not found. Make sure the file exists and try again, or run without the --config file to use the default settings.")
+            exit()
 
-    def run(self) -> None:
+        return read_yaml(config_file)
+
+    def run(self, args: list) -> None:
+        
         self.setup_basic_parser()
 
         # parse the known arguments for now (basically, we want the config file)
+        basic_config, unused_args = self.basic_parser.parse_known_args(args)
 
-        # load the config file to get the list of enabled items
-        basic_config, unused_args = self.basic_parser.parse_known_args()
-
+        # setup any custom module paths, so they'll show in the help and for arg parsing
         setup_paths(basic_config.module_paths)
 
         # if help flag was called, then show the help
         if basic_config.help:
             self.show_help(basic_config)
 
-        # load the config file
-        yaml_config = {}
-
-        if not os.path.exists(basic_config.config_file) and basic_config.config_file != DEFAULT_CONFIG_FILE:
-            logger.error(f"The configuration file {basic_config.config_file} was  not found. Make sure the file exists and try again, or run without the --config file to use the default settings.")
-            exit()
-
-
-        yaml_config = read_yaml(basic_config.config_file)
+        yaml_config = self.load_config(basic_config.config_file)
         self.setup_complete_parser(basic_config, yaml_config, unused_args)
 
         logger.info(f"======== Welcome to the AUTO ARCHIVER ({__version__}) ==========")
diff --git a/src/auto_archiver/modules/instagram_api_extractor/instagram_api_extractor.py b/src/auto_archiver/modules/instagram_api_extractor/instagram_api_extractor.py
index 4a18228..5dad0ba 100644
--- a/src/auto_archiver/modules/instagram_api_extractor/instagram_api_extractor.py
+++ b/src/auto_archiver/modules/instagram_api_extractor/instagram_api_extractor.py
@@ -28,7 +28,7 @@ class InstagramAPIExtractor(Extractor):
     # TODO: improvement collect aggregates of locations[0].location and mentions for all posts
     """
 
-    global_pattern = re.compile(
+    valid_url = re.compile(
         r"(?:(?:http|https):\/\/)?(?:www.)?(?:instagram.com)\/(stories(?:\/highlights)?|p|reel)?\/?([^\/\?]*)\/?(\d+)?"
     )
 
@@ -44,7 +44,7 @@ class InstagramAPIExtractor(Extractor):
         url.replace("instagr.com", "instagram.com").replace(
             "instagr.am", "instagram.com"
         )
-        insta_matches = self.global_pattern.findall(url)
+        insta_matches = self.valid_url.findall(url)
         logger.info(f"{insta_matches=}")
         if not len(insta_matches) or len(insta_matches[0]) != 3:
             return
diff --git a/src/auto_archiver/modules/instagram_extractor/instagram_extractor.py b/src/auto_archiver/modules/instagram_extractor/instagram_extractor.py
index 1cdb0b1..3cf0362 100644
--- a/src/auto_archiver/modules/instagram_extractor/instagram_extractor.py
+++ b/src/auto_archiver/modules/instagram_extractor/instagram_extractor.py
@@ -16,10 +16,13 @@ class InstagramExtractor(Extractor):
     Uses Instaloader to download either a post (inc images, videos, text) or as much as possible from a profile (posts, stories, highlights, ...)
     """
     # NB: post regex should be tested before profile
+
+    valid_url = re.compile(r"(?:(?:http|https):\/\/)?(?:www.)?(?:instagram.com|instagr.am|instagr.com)\/")
+
     # https://regex101.com/r/MGPquX/1
-    post_pattern = re.compile(r"(?:(?:http|https):\/\/)?(?:www.)?(?:instagram.com|instagr.am|instagr.com)\/(?:p|reel)\/(\w+)")
+    post_pattern = re.compile(r"{valid_url}(?:p|reel)\/(\w+)".format(valid_url=valid_url))
     # https://regex101.com/r/6Wbsxa/1
-    profile_pattern = re.compile(r"(?:(?:http|https):\/\/)?(?:www.)?(?:instagram.com|instagr.am|instagr.com)\/(\w+)")
+    profile_pattern = re.compile(r"{valid_url}(\w+)".format(valid_url=valid_url))
     # TODO: links to stories
 
     def setup(self, config: dict) -> None:
diff --git a/src/auto_archiver/modules/telethon_extractor/telethon_extractor.py b/src/auto_archiver/modules/telethon_extractor/telethon_extractor.py
index f378e7e..8a08954 100644
--- a/src/auto_archiver/modules/telethon_extractor/telethon_extractor.py
+++ b/src/auto_archiver/modules/telethon_extractor/telethon_extractor.py
@@ -14,7 +14,7 @@ from auto_archiver.utils import random_str
 
 
 class TelethonArchiver(Extractor):
-    link_pattern = re.compile(r"https:\/\/t\.me(\/c){0,1}\/(.+)\/(\d+)")
+    valid_url = re.compile(r"https:\/\/t\.me(\/c){0,1}\/(.+)\/(\d+)")
     invite_pattern = re.compile(r"t.me(\/joinchat){0,1}\/\+?(.+)")
 
 
@@ -92,7 +92,7 @@ class TelethonArchiver(Extractor):
         """
         url = item.get_url()
         # detect URLs that we definitely cannot handle
-        match = self.link_pattern.search(url)
+        match = self.valid_url.search(url)
         logger.debug(f"TELETHON: {match=}")
         if not match: return False
 
diff --git a/src/auto_archiver/modules/twitter_api_extractor/twitter_api_extractor.py b/src/auto_archiver/modules/twitter_api_extractor/twitter_api_extractor.py
index ede0239..0434190 100644
--- a/src/auto_archiver/modules/twitter_api_extractor/twitter_api_extractor.py
+++ b/src/auto_archiver/modules/twitter_api_extractor/twitter_api_extractor.py
@@ -12,7 +12,7 @@ from auto_archiver.core import Extractor
 from auto_archiver.core import Metadata,Media
 
 class TwitterApiExtractor(Extractor):
-    link_pattern = re.compile(r"(?:twitter|x).com\/(?:\#!\/)?(\w+)\/status(?:es)?\/(\d+)")
+    valid_url = re.compile(r"(?:twitter|x).com\/(?:\#!\/)?(\w+)\/status(?:es)?\/(\d+)")
 
     def setup(self, config: dict) -> None:
         super().setup(config)
@@ -54,7 +54,7 @@ class TwitterApiExtractor(Extractor):
 
     def get_username_tweet_id(self, url):
         # detect URLs that we definitely cannot handle
-        matches = self.link_pattern.findall(url)
+        matches = self.valid_url.findall(url)
         if not len(matches): return False, False
 
         username, tweet_id = matches[0]  # only one URL supported
diff --git a/src/auto_archiver/utils/url.py b/src/auto_archiver/utils/url.py
index 7586cca..3b67514 100644
--- a/src/auto_archiver/utils/url.py
+++ b/src/auto_archiver/utils/url.py
@@ -2,8 +2,11 @@ import re
 from urllib.parse import urlparse, urlunparse
 
 class UrlUtil:
-    telegram_private = re.compile(r"https:\/\/t\.me(\/c)\/(.+)\/(\d+)")
-    is_istagram = re.compile(r"https:\/\/www\.instagram\.com")
+
+    AUTHWALL_URLS = [
+        re.compile(r"https:\/\/t\.me(\/c)\/(.+)\/(\d+)"), # telegram private channels
+        re.compile(r"https:\/\/www\.instagram\.com"), # instagram
+    ]
 
     @staticmethod
     def clean(url: str) -> str: return url
@@ -13,8 +16,9 @@ class UrlUtil:
         """
         checks if URL is behind an authentication wall meaning steps like wayback, wacz, ... may not work
         """
-        if UrlUtil.telegram_private.match(url): return True
-        if UrlUtil.is_istagram.match(url): return True
+        for regex in UrlUtil.AUTHWALL_URLS:
+            if regex.match(url):
+                return True
 
         return False
 
diff --git a/tests/data/example_module/example_module.py b/tests/data/example_module/example_module.py
deleted file mode 100644
index bce8ba4..0000000
--- a/tests/data/example_module/example_module.py
+++ /dev/null
@@ -1,4 +0,0 @@
-from auto_archiver.core.extractor import Extractor
-class ExampleModule(Extractor):
-    def download(self, item):
-        print("do something")
\ No newline at end of file
diff --git a/tests/data/example_module/__init__.py b/tests/data/test_modules/example_module/__init__.py
similarity index 100%
rename from tests/data/example_module/__init__.py
rename to tests/data/test_modules/example_module/__init__.py
diff --git a/tests/data/example_module/__manifest__.py b/tests/data/test_modules/example_module/__manifest__.py
similarity index 55%
rename from tests/data/example_module/__manifest__.py
rename to tests/data/test_modules/example_module/__manifest__.py
index 19a85f9..f2ebdbf 100644
--- a/tests/data/example_module/__manifest__.py
+++ b/tests/data/test_modules/example_module/__manifest__.py
@@ -1,10 +1,11 @@
 {
     "name": "Example Module",
-    "type": ["extractor"],
+    "type": ["extractor", "feeder", "formatter", "storage", "enricher", "database"],
     "requires_setup": False,
     "dependencies": {"python": ["loguru"]
                               },
     "configs": {
-            "csv_file": {"default": "db.csv", "help": "CSV file name"}
+            "csv_file": {"default": "db.csv", "help": "CSV file name"},
+            "required_field": {"required": True, "help": "required field in the CSV file"},
         },
 }
\ No newline at end of file
diff --git a/tests/data/test_modules/example_module/example_module.py b/tests/data/test_modules/example_module/example_module.py
new file mode 100644
index 0000000..7def054
--- /dev/null
+++ b/tests/data/test_modules/example_module/example_module.py
@@ -0,0 +1,28 @@
+from auto_archiver.core import Extractor, Enricher, Feeder, Database, Storage, Formatter, Metadata
+
+class ExampleModule(Extractor, Enricher, Feeder, Database, Storage, Formatter):
+    def download(self, item):
+        print("download")
+
+    def __iter__(self):
+        yield Metadata().set_url("https://example.com")
+
+    
+    def done(self, result):
+        print("done")
+
+    def enrich(self, to_enrich):
+        print("enrich")
+
+    def get_cdn_url(self, media):
+        return "nice_url"
+    
+    def save(self, item):
+        print("save")
+    
+    def uploadf(self, file, key, **kwargs):
+        print("uploadf")
+
+    
+    def format(self, item):
+        print("format")
diff --git a/tests/data/test_orchestration.yaml b/tests/data/test_orchestration.yaml
new file mode 100644
index 0000000..ec6af35
--- /dev/null
+++ b/tests/data/test_orchestration.yaml
@@ -0,0 +1,16 @@
+steps:
+  feeders:
+  - example_module
+  extractors:
+  - example_module
+  formatters:
+  - example_module
+  storages:
+  - example_module
+  databases:
+  - example_module
+  enrichers:
+  - example_module
+
+
+# Global configuration
\ No newline at end of file
diff --git a/tests/extractors/test_extractor_base.py b/tests/extractors/test_extractor_base.py
index f6be70b..24689b4 100644
--- a/tests/extractors/test_extractor_base.py
+++ b/tests/extractors/test_extractor_base.py
@@ -9,7 +9,7 @@ class TestExtractorBase(object):
     config: dict = None
 
     @pytest.fixture(autouse=True)
-    def setup_archiver(self, setup_module):
+    def setup_extractor(self, setup_module):
         assert self.extractor_module is not None, "self.extractor_module must be set on the subclass"
         assert self.config is not None, "self.config must be a dict set on the subclass"
 
diff --git a/tests/extractors/test_instagram_extractor.py b/tests/extractors/test_instagram_extractor.py
new file mode 100644
index 0000000..7efe1b1
--- /dev/null
+++ b/tests/extractors/test_instagram_extractor.py
@@ -0,0 +1,21 @@
+import pytest
+
+from auto_archiver.modules.instagram_extractor import InstagramExtractor
+from .test_extractor_base import TestExtractorBase
+
+class TestInstagramExtractor(TestExtractorBase):
+
+    extractor_module: str = 'instagram_extractor'
+    config: dict = {}
+
+    @pytest.mark.parametrize("url", [
+        "https://www.instagram.com/p/",
+        "https://www.instagram.com/p/1234567890/",
+        "https://www.instagram.com/reel/1234567890/",
+        "https://www.instagram.com/username/",
+        "https://www.instagram.com/username/stories/",
+        "https://www.instagram.com/username/highlights/",
+    ])
+    def test_regex_matches(self, url):
+        # post
+        assert InstagramExtractor.valid_url.match(url)
diff --git a/tests/test_modules.py b/tests/test_modules.py
index decc616..a4c0ec8 100644
--- a/tests/test_modules.py
+++ b/tests/test_modules.py
@@ -7,7 +7,7 @@ def example_module():
     import auto_archiver
 
     previous_path = auto_archiver.modules.__path__
-    auto_archiver.modules.__path__.append("tests/data/")
+    auto_archiver.modules.__path__.append("tests/data/test_modules/")
 
     module = get_module_lazy("example_module")
     yield module
diff --git a/tests/test_orchestrator.py b/tests/test_orchestrator.py
new file mode 100644
index 0000000..9e81df7
--- /dev/null
+++ b/tests/test_orchestrator.py
@@ -0,0 +1,123 @@
+import pytest
+import sys
+from argparse import ArgumentParser
+from auto_archiver.core.orchestrator import ArchivingOrchestrator
+from auto_archiver.version import __version__
+from auto_archiver.core.config import read_yaml, store_yaml
+
+TEST_ORCHESTRATION = "tests/data/test_orchestration.yaml"
+TEST_MODULES = "tests/data/test_modules/"
+
+@pytest.fixture
+def test_args():
+    return ["--config", TEST_ORCHESTRATION,
+            "--module_paths", TEST_MODULES,
+            "--example_module.required_field", "some_value"] # just set this for normal testing, we will remove it later
+
+@pytest.fixture
+def orchestrator():
+    yield ArchivingOrchestrator()
+    # hack - the loguru logger starts with one logger, but if orchestrator has run before
+    # it'll remove the default logger, add it back in:
+
+    from loguru import logger
+
+    if not logger._core.handlers.get(0):
+        logger._core.handlers_count = 0
+        logger.add(sys.stderr)
+    # and remove the custom logger
+    if logger._core.handlers.get(1):
+        logger.remove(1)
+
+@pytest.fixture
+def basic_parser(orchestrator) -> ArgumentParser:
+    return orchestrator.setup_basic_parser()
+
+def test_setup_orchestrator(orchestrator):
+    assert orchestrator is not None
+
+def test_parse_config():
+    pass
+
+def test_parse_basic(basic_parser):
+    args = basic_parser.parse_args(["--config", TEST_ORCHESTRATION])
+    assert args.config_file == TEST_ORCHESTRATION
+
+@pytest.mark.parametrize("mode", ["simple", "full"])
+def test_mode(basic_parser, mode):
+    args = basic_parser.parse_args(["--mode", mode])
+    assert args.mode == mode
+
+def test_mode_invalid(basic_parser, capsys):
+    with pytest.raises(SystemExit) as exit_error:
+        basic_parser.parse_args(["--mode", "invalid"])
+    assert exit_error.value.code == 2
+    assert "invalid choice" in capsys.readouterr().err
+
+def test_version(basic_parser, capsys):
+    with pytest.raises(SystemExit) as exit_error:
+        basic_parser.parse_args(["--version"])
+    assert exit_error.value.code == 0
+    assert capsys.readouterr().out == f"{__version__}\n"
+
+def test_help(orchestrator, basic_parser, capsys):
+
+    args = basic_parser.parse_args(["--help"])
+    assert args.help == True
+
+    # test the show_help() on orchestrator
+    with pytest.raises(SystemExit) as exit_error:
+        orchestrator.show_help(args)
+
+    assert exit_error.value.code == 0
+    assert "Usage: auto-archiver [--help] [--version] [--config CONFIG_FILE]" in capsys.readouterr().out
+
+
+def test_add_custom_modules_path(orchestrator, test_args):
+    orchestrator.run(test_args)
+    
+    import auto_archiver
+    assert "tests/data/test_modules/" in auto_archiver.modules.__path__
+
+def test_add_custom_modules_path_invalid(orchestrator, caplog, test_args):
+
+    orchestrator.run(test_args +  # we still need to load the real path to get the example_module 
+                          ["--module_paths", "tests/data/invalid_test_modules/"])
+
+    # assert False
+    assert caplog.records[0].message == "Path 'tests/data/invalid_test_modules/' does not exist. Skipping..."
+
+
+def test_check_required_values(orchestrator, caplog, test_args):
+    # drop the example_module.required_field from the test_args
+    test_args = test_args[:-2]
+
+    with pytest.raises(SystemExit) as exit_error:
+        orchestrator.run(test_args)
+
+    assert caplog.records[1].message == "the following arguments are required: --example_module.required_field"
+
+def test_get_required_values_from_config(orchestrator, test_args, tmp_path):
+
+    # load the default example yaml, add a required field, then run the orchestrator
+    test_yaml = read_yaml(TEST_ORCHESTRATION)
+    test_yaml['example_module'] = {'required_field': 'some_value'}
+    # write it to a temp file
+    tmp_file = (tmp_path / "temp_config.yaml").as_posix()
+    store_yaml(test_yaml, tmp_file)
+
+    # run the orchestrator
+    orchestrator.run(["--config", tmp_file, "--module_paths", TEST_MODULES])
+
+    # should run OK, since there are no missing required fields
+
+    # basic_args = basic_parser.parse_known_args(test_args)
+    # test_yaml = read_yaml(TEST_ORCHESTRATION)
+    # test_yaml['example_module'] = {'required_field': 'some_value'}
+
+    # # monkey patch the example_module to have a 'configs' setting of 'my_var' with required=True
+    # # load the module first
+    # m = get_module_lazy("example_module")
+
+    # orchestrator.setup_complete_parser(basic_args, test_yaml, unused_args=[])
+    # assert orchestrator.config is not None
\ No newline at end of file